Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.205101E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:15:37+0800
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    1 Object 1

    AOE ID 52454
    NORAD ID 52454
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53857
    NORAD ID 53857
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3888 STARLINK-4809
    Time of Closest Approach 2026-09-05T17:25:17+0000
    Collision Probability (Pc) 1.205101E-6
    Conjunction Distance (km) 2.928 km
    Relative Speed (km/s) 11.678 km/s
    Conjunction Risk Parameters R (Radial): 2.677 | I (In-track): -0.77 | C (Cross-track): -0.901
    Collision Risk Index (CRI) 0.37
    X Position (km) 6356.882 6354.488
    Position Y (km) -469.145 -467.78
    Position Z (km) 2505.82 2504.832
    Velocity X (km/s) -1.777 2.5
    Velocity Y (km/s) 5.06 4.746
    Velocity Z (km/s) 5.43 -5.432

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3888 STARLINK-4809
    Semimajor Axis (a) 6851.608 km 6848.880 km
    Eccentricity (e) 0.000129 0.000102
    Inclination (i) 53.1611° 53.1597°
    RAAN 346.6650° 202.7837°
    Perigee Argument 107.2771° 77.7908°
    Mean Anomaly (M) 123.4552° 282.3207°
    Apogee 474.355 km 471.442 km
    Perigee 472.587 km 470.044 km
    Orbit Epoch 2026-09-04T00:00:02+0000 2026-09-03T14:38:44+0000

    STARLINK-3888 & STARLINK-4809 Collision Probability (Pc) Trend

    STARLINK-3888 & STARLINK-4809 Collision Probability (Pc) TrendNot Available

    STARLINK-3888 & STARLINK-4809 Miss Distance (Miss Distance) Trend

    STARLINK-3888 & STARLINK-4809 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3888Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4809Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3888Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4809Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3888

    No nearby objects data